Strain-induced pseudomagnetic and scalar fields in symmetry-enforced Dirac nodes

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:459

Article; Proceedings Paper

Zabolotskiy, A. D.¹  Lozovik, Yu. E.^1,2,3 

[1] Dukhov Res Inst Automat VNIIA, Sushchevskaya 22, Moscow 127055, Russia

[2] Russian Acad Sci ISAN, Inst Spect, Fizicheskaya 5, Moscow 108840, Russia

[3] Natl Res Univ Higher Sch Econ MIEM HSE, Moscow Inst Elect & Math, Tallinskaya 34, Moscow 123458, Russia

关键词: Dirac fermions;    Pseudomagnetic field;    Lattice symmetry;   

DOI  :  10.1016/j.jmmm.2017.12.056

来源: Elsevier

【 摘 要 】

It is known that Dirac nodes can be present at high-symmetry points of Brillouin zone only for certain space groups. For these cases, the effect of strain is treated by symmetry considerations. The dependence of strain-induced potentials on the strain tensor is found. In all but two cases, the pseudomagnetic field potential is present. It can be used to control valley currents. (C) 2017 Elsevier B.V. All rights reserved.

【 授权许可】

Free